Non-coherent

Non-coherent

Communications mode wherein a spacecraft generates its downlink frequency independent of any uplink frequency.

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Part of Speech: noun
Synonym(s):
Blossary:
Industry/Domain: Aerospace
Category: Space flight
Company: NASA
Product:
Acronym-Abbreviation:

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Related terms

non-coherent

Aerospace; Space flight

Communications mode wherein a spacecraft generates its downlink frequency independent of any uplink frequency.

two-way non-coherent mode (TWNC)

Aerospace; Space flight

Describing a spacecraft's downlink is not based upon a received uplink from DSN.

coherent

Aerospace; Space flight

Two-way communications mode wherein the spacecraft generates its downlink frequency based upon the frequency of the uplink it receives.

lunar probe

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estimated approach time

Aerospace; Space flight

The time at which air traffic control (ATC) expects that an arriving aircraft following a delay will leave the holding point.

Discovery

Aerospace; Space flight

The oldest of NASA's three surviving space shuttles, Discovery’s maiden voyage was in 1984. It made both return-to-flight missions following the Challenger and Columbia disasters, ...